Netrouting uses informational communities to tag all routes leaving the AS6206 network. The communities describe how a particular route is learned and where. You should never receive more than one informational community on an IP prefix learned from 6206
Communities are always used in the following format: 6206:CTRPP
| 6206 | Standard preamble |
| C | Continent Code |
| T | Route Type |
| R | Region Code |
| PP | City Code |
Netrouting routes are marked to reflect their continental scope as follows:
| Description | Type | Local Preference |
| Transit | 100 | |
| Peer | Public | 400 |
| Peer | Private | 500 |
| Peer | Partial | 150 |
| Customer | Partial | 600 |
| Customer | Transit | 650 |
| Internal | 800 |
| North-West | North | North-East |
| West | Central | East |
| South-West | South | South-East |
| 11Amsterdam, NL | 12Rotterdam, NL | 13The Hague, NL |
| 14Frankfurt, DE | 15Stockholm, SE | 16Miami, FL |
| 18Bucharest, RO | 20Hong Kong, CN |
